Tool holder



s'. J. HELLMANf TOOL HOLDER. APPLICATION FILED JAN-10,1921.

A TTORNEYS.

PATENT OFFICE.

SAMUEL JACK HELLMAN, OF LOS ANGELES, CALIFORNIA.

TOOL HOLDER.

Specification of Letters Patent.

Patented Apr. 11, 1922.

Application filed January 10, 1921. Serial No. 436,165.

T 0 all whom it may concern Be it known that I, SAMUEL JACK HELL- MAN, acitizen of the United States. residing at LosAngeles, in the county ofLos Angeles and State of California, have invented a new and useful ToolHolder, of which the following is a specification.

This invention relates to tool holders and is more particularly directedto a tool holder especially adapted for manipulation in crowded spacesinaccessible to the standard types of tools.

The object of the invention to provide a tool holder adapted to receivethe shank of a tool and having a universally connected operating handlefor rotating the tool from various angles, and to provide a pressuremember rotatably retained on the socket and having a connecting handlever by which adequate pressure is applied to the socket to maintainthe tool in engagement with the work.

Various other objects and advantages will be more fully apparent fromthe following description of the accompanying drawings which form a partof this disclosure. and which illustrate a preferred form of embodimentof the invention.

Of the drawings:

Figure 1 is a longitudinal section of the device.

Fig. 2 is an elevation showing the tool holder. in use as a screwdriver,and

Fig. 3 is a section on line m -na of Fig. 1.

In the drawings. 1 designates a tool socket having a central bore toreceive the shank 2' of a tool, a set screw 3 being screv.*threaded inthe outer end of the socket and engaging into a notch 4.- in the toolshank to maintain the tool in place. The upper end of the socket hasopposed ears 5 to accommodate trunnion screws 6 which pivotally engageaball member 7 as an element of a universal connection. The companionmember 8 or the universal connection has similar opposed ears 9 carryingtrunnion screws 10 also pivotally engaging the ball member 7 at pointsat right angles from the screws 6. and the member 8 has an operatinghandle 11 se-v cured thereto. A rotatable pressure member or sleeve 12is mounted on the socket l and is retained against endwise movementthereon by engagement with a shoulder 13 on the socket and by a collar14 secured on the outer portion of the socket by a set screw 15. A handlever 16 has a bifurcated inner end providing opposed limbs 1718 whichproect on opposite sides of the pressure member 12 and are pivotallyconnected thereto by screws 19-20, the screw 19 being a shoulder screwpermitting movement of the lever and the screw 20 being a winged screwby which the lever may be clamped to the sleeve 12 in any angularposition.

In Figs. 1 and 2 I have shown the tool as being in the form of ascrewdriver bit and in Fig. 1 I have indicated in dotted lines, a socketwrench tool. but it is obvious that there may be provided a wide rangeof various types of tools and bits without departing from the scope ofthe present invention.

In Fig. 2 I have shown the tool holder as used as a screwdriver andpositioned to operate on a screw 25 which is positioned in a closecorner where it cannot be reached with the ordinary form or" straightintegral screwdriver. lVith the present device positioned as shown thetool socket is held in proper alignment with the screw 25 by he handlever and the socket is rotated by the angularly positioned operatinghandle 11. If a stationary abutment, such-as a stud as at 26, is presentsaid stud or projection may be engaged by the lever 16 and the leverused as a pry to force the tool against the work and it a convenientabutment is not present the hand lever 16 be clamped rigid to the sleeve12 by tightening the wing screw 20 and the lever then used as a push rodor bar.

I claim:

A tool holder combining a tool socket, on operating handle universallyconnected to the socket, a pressure sleeve rotatable on the socket andretained against axial movement thereon, and a pressure lever having aforked end extending on opposite sides 01 the pressure sleeve andpivotally connected thereto, said lever having its connected end bent topermit the lever to be positioned parallel with the operating handlewhen axially aligned with the socket.

Signed at Los Angeles, California, this 31st day of December, 1920.

SAMUEL JACK HELLMAN. Witnesses:

CLARENCE B. FOSTER,

L. BELLE WEAVER.

